Walker alleges in his suit that he designed the label’s emblem in 1995 when Roc-A-Fella was just starting out. The black-and-white logo of an “R” back with a record and champagne bottle is synonymous with Jay-Z and his branding, as well as other artists on Roc-A-Fella Records.

“The logo has become universally recognized as an iconic symbol of Jay-Z, one of the most successful recording artists in the history of popular music,” the suit says.